Multi-vendor marketplace app templates
Marketplaces where many sellers list on one storefront, and an order can touch several of them at once. Each of these ships the vendor side, the customer side and the admin panel — the three pieces that have to agree before a single order can be fulfilled.
6 templates · from $11 · full source code

Feastly
Multi-restaurant food delivery ecosystem with 4 apps — customer, driver, vendor and Next.js admin — plus AI features.

GreenCart
Multi-vendor organic grocery marketplace with a Flutter shopping app and a Next.js vendor and admin dashboard.

ServeAI
On-demand services marketplace with a Flutter app for customers and providers plus a Next.js admin backend.

ClassiMarket
Classified ads marketplace with a Flutter mobile app and a Next.js admin panel for listings and moderation.

Tickety Pro
A comprehensive solution for event booking with multi-vendor support. Built with Flutter.

Crately
AI B2B food supplier platform with customer and driver Flutter apps plus a Next.js and Postgres admin panel.
What makes a marketplace template different
A single-vendor shop has one seller, one payout and one fulfilment path. A marketplace has none of those. The cart has to split by vendor while still taking one payment, each vendor has to fulfil independently without seeing the others' orders, and the admin has to reconcile payouts across all of them. A template that skips any of the three is a shop with a vendor table bolted on, and you will find out which one you bought during your first multi-vendor order.
What you should check before buying any of them
Open the data model first. Ask whether an order is one document with vendor line items or several sibling documents under a parent — that single decision determines whether per-vendor status, partial refunds and independent delivery are possible at all, and it is not something you can retrofit cheaply. Then check that the admin panel is a real application rather than a Firebase console screenshot, because handing the console to a non-technical operator is not an option.